--- service: i.root-servers.net start-period: '2014-05-05T00:00:00Z' end-period: '2014-05-06T00:00:03Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2716350578 dns-udp-queries-received-ipv6: 192776060 dns-tcp-queries-received-ipv4: 6096565 dns-tcp-queries-received-ipv6: 247738 dns-udp-responses-sent-ipv4: 2661817790 dns-udp-responses-sent-ipv6: 194796597 dns-tcp-responses-sent-ipv4: 6094129 dns-tcp-responses-sent-ipv6: 248618